The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Nov. 03, 2005
Akira Yamaguchi, Fukushima, JP;
Kumiko Takagi, Fukushima, JP;
Yuzuru Fukushima, Miyagi, JP;
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Kumiko Takagi, Fukushima, JP;
Yuzuru Fukushima, Miyagi, JP;
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery capable of improving battery characteristics such as cycle characteristics and high temperature storage characteristics is provided. An anode includes an anode active material which includes Sn or Si as an element. A separator is impregnated with an electrolyte solution, and the electrolyte solution includes an acid anhydride such as succinic anhydride or a derivative thereof. Thereby, a coating is formed on the anode, and the decomposition of the electrolyte solution in the anode can be prevented. An electrolyte solution to which 4-fluoro-1,3-dioxolane-2-one is mixed is more preferably used.